
If you have questions about the conjugation of контрмина or Russian nouns in general, you can practice and get feedback from a professional tutor.
Противник, видите ли, подвёл контрмину на четыре ярда глубже,— так и доложите герцогу.
For look you, the adversary, you may discuss unto the duke, look you, is digt himself four yards under the countermines.